Watch the video, especially the camera angle from behind the plate that starts at 28 seconds and it's pretty clear that AJ just stuck his arm out into that ball. Smart move on his part, his team needed baserunners, why not take a free one. Even the Rangers announcers were laughing at how blatantly he just stuck his padded elbow out there to take that ball off his arm.
I would think you'd have to be pretty out of your mind to think Reed was trying to intentionally hit him by throwing to a spot that he could have only anticipated his arm would be at. That's not how you pitch to someone you want to hit.